TOLD

Question 1

Vcef

Critical Engine Failure Speed

Answer 1

Speed at which one engine can fail and same distance is required to acclerate to lift off or abort to full stop

Question 2

Vr

Refusal Speed

Answer 2

Max speed that can be attained from which a stop may be completed within available runway length.

Question 3

CFL

Critical Field Length

Answer 3

Total length of runway required to accelerate on all engines to Vcef then continue to liftoff or stop.

Used to determine max gross weoght for safe takeoff and climbout

Cannot be greater than runway available

Question 4

Vmcg

Minimum Control Speed Ground

Answer 4

88 KIAS

Speed at which when an engine fails, directional control can be maintained within 25 feet laterally while the good engine remains at TRT.

Crosswinds can increase Vmcg

Question 5

Vmca

Minimum Control Speed Air

Answer 5

89 KIAS

Minimum cointrollable air speed, out of ground effect, with one engine inop and remaining engine at TRT. Established with 5 Degrees AOB into good engine, trimmed for takeoff.

Always less than takeoff speed

Not considered in takeoff planning

Question 6

Vb

Maximum Braking Speed

Answer 6

Max speed from which the aircraft can be brought to a stop without exceeding maximum braking energy limit

14.8 Million Foot Pounds

Takeoff accel check should be below Vb

Question 7

S1

GO/NO-GO Speed

Answer 7

Takeoff is committed at or above S1

Equal to or greater than the higher of Vcef or Vmcg

Must not be higher than Vr, Vrot or Vb (if higher reduce weight)

Question 8

Vrot

Rotation Speed

Answer 8

Speed at which attitude is incresed from taxi to lift off.

Must be greater than Vmcg

Question 9

Reference Zero

Answer 9

The point in space at the end of the takeoff flare distance at which the aircraft reaches 50 feet AGL

Will occur NLT departure end of the runway